IGCSE Physics Magnetism & Electromagnetism (Edexcel) All Answers
Correct
1. Define magnetic field. - Magnetic field is the area where magnetic materials experience a force.
2. What do magnetic field lines indicate? - Magnetic field lines show the magnitude and direction of magnetic fields, al...
IGCSE Physics Magnetism & Electromagnetism (Edexcel) All Answers
Correct
1. Define magnetic field.
- Magnetic field is the area where magnetic materials experience a force.
2. What do magnetic field lines indicate?
- Magnetic field lines show the magnitude and direction of magnetic fields, always running from north
to south.
3. Define uniform magnetic field.
- A uniform magnetic field exists when the field lines are evenly spaced and parallel, such as between
the north and south poles of two adjacent bar magnets.
4. What is electromagnetism?
, - Electromagnetism refers to the production of a magnetic field around a conductor carrying an electric
current.
5. Explain magnetically soft materials.
- Magnetically soft materials are easily magnetized and demagnetized.
6. Explain magnetically hard materials.
- Magnetically hard materials are difficult to magnetize and demagnetize.
7. How can you increase the strength of an electromagnet?
- You can make an electromagnet stronger by adding more turns to the coil, increasing the current
flowing through the coil, or wrapping the coil around a soft iron core.
8. What does the right hand rule demonstrate?
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